ES2660158T3 - Enhanced multiplexing system and technique for uplink control channels - Google Patents

Abstract

A method for the transmission of multiplexed uplink control channels, comprising: determining that the first and second control channels, with the first and second resources allocated, require, respectively, simultaneous transmission; transmitting a selected item between the first and second control channels, with the corresponding item from the first and second resources, to indicate the selected item without indicating the unselected between the first and second control channels; and transmitting a selected element between the first and second control channels, with the non-corresponding element of the first and second resources, to indicate both the first and second control channels; wherein the first and second control channels comprise the receipt of the data acknowledgment and the service request; the method further comprises multiplexing the service request and the ACK / NACK based on a downlink transmission mode, DL; determining that the downlink transmission mode, DL, is multiple input, multiple output transmission, MIMO, with rank two; and receiving a scheduling constraint to select single input and multiple output, SIMO, or rank one MIMO, when the downlink transmission corresponds to a service request subframe; and multiplexing ACK and service request by using an ACK / NACK channel, by quadrature phase shift modulation, QPSK.

Description

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DESCRIPTION

Enhanced multiplexing system and technique for uplink control channels FIELD OF THE INVENTION

[0001] The exemplary and non-limiting aspects described herein generally refer to wireless communications systems, procedures, software products and devices and, more specifically, to techniques for effectively transporting information for the ACK / NAK channel. and the service request channel (SR) when both are planned simultaneously.

BACKGROUND

[0002] Wireless communication systems have been widely deployed to provide various types of communication content, such as voice, data, etc. These systems can be multiple access systems capable of supporting communication with multiple users by sharing the available resources of the system (for example, bandwidth and transmission power). Examples of such multiple access systems include code division multiple access systems (CDMA), time division multiple access systems (TDMA), frequency division multiple access systems (FDMA), long-term evolution systems (LTE) of 3GPP and orthogonal frequency division multiple access systems (OFDMA).

[0003] In general, a multi-access wireless communication system can simultaneously support communication for multiple wireless terminals. Each terminal communicates with one or more base stations through direct and reverse link transmissions. The direct link (or downlink) refers to the communication link from the base stations to the terminals, and the reverse link (or uplink) refers to the communication link from the terminals to the base stations. This communication link can be established through a single-input and single-output system, a multi-input and single-output system or a multi-input and multi-output system (MIMO).

[0004] The Universal Mobile Telecommunications System (UMTS) is one of the third generation (3G) cell phone technologies. UTRAN, short for Terrestrial Radio Access Network, UMTS, is a collective term for B nodes and radio network controllers that make up the UMTS radio access network. This communications network can carry many types of traffic, from real-time circuit switching to IP-based packet switching. The UTRAN allows connectivity between the UE (user equipment) and the core network. The UTRAN contains the base stations, which are called B nodes, and radio network controllers (RNC). The RNC provides control functionalities for one or more B nodes. A node B and an RNC may be the same device, although typical implementations have a separate RNC located in a central office that serves multiple nodes B. Despite the fact that that do not have to be physically separated, there is a logical interface between them known as Iub. The RNC and its corresponding B nodes are called the Radio Network Subsystem (RNS). There may be more than one RNS present in a UTRAN.

[0005] The LTE (Long Term Evolution) of 3GPP is the name given to a project within the Third Generation Association Project (3GPP) to improve the UMTS mobile telephony standard, to meet future requirements. The goals include improving efficiency, reducing costs, improving services, making use of new spectrum opportunities and better integration with other open standards. The LTE system is described in the UTRA Evolved (EUTRA) and UTRAN Evolved (EUTRAN) specification series.

[0006] For transmissions of the uplink (UL) ACK / NACK channel of the LTE and the service request (SR) channel, cyclically shifted CAZAC (Zero Amplitude Auto-Correlation) sequences are used as well. such as the discrete Fourier transformation (DFT) and Walsh widening, to multiplex different users. Problems arise when both channels must be sent simultaneously.

SUMMARY

[0007] The invention is defined in independent claims 1, 6, 9 and 12. A simplified summary is presented below in order to provide a basic understanding of some aspects of the disclosed aspects. This summary is not an extensive overview nor is it intended to identify key or critical elements, nor to determine the scope of such aspects. Its objective is to present some concepts of the characteristics described in a simplified manner as a prelude to the more detailed description that will be presented later.

[0008] The Nokia Siemens Networks document "Multiplexing of planning requests with ACK / NACK and / or CQI" of January 8, 2008, 3GPP draft, R1-080312. The document proposes multiplexing schemes for the case in which the SR is transmitted together with the ACK / NACK or the CQI. In case of negative SR, the ACK / NACK and / or the CQI are signaled using the original ACK / NACK and / or CQI resources. In case of positive SR, the signal

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ACK / NACK is transmitted using SR resources and CQI is not sent.

[0009] The Alcatel-Lucent document "Multiplexing of the uplink planning request" of October 2, 2007, draft 3GPP, R1-074276_MUX_SRS. The document discloses possibilities to manage the case in which the SR must be transmitted together with an ACK / NAK in the PUCCH. When the ACK / NAK consists of 1 bit only, the second bit of a QPSK modulation symbol can be used to transmit the SR and the ACK / NAK together with the agreed structure for the ACK / NAK. When ACK / NAK consists of 2 bits in the case of SU-MIMO, the transmission of the current SR could be discarded and postponed until a subsequent transmission opportunity, where a maximum of 1-bit ACK / NAK is transmitted, or could be used 2 PUCCH resources for the joint transmission of the SR and the ACK / NAK.

[0010] According to one or more aspects and the corresponding disclosure thereof, various aspects are described in relation to the provision of a predetermined correlation as to how ACKs, SRs or ACK + SRs can be multiplexed using a uplink control channel resource when both acknowledgment and service requests are planned simultaneously. In this way, the uplink control channel can be demultiplexed to receive ACKs, SRs or ACK + SRs without blind decoding, link loss through higher order modulation or additional hardware / software complexity.

BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The characteristics, nature and advantages of the present disclosure will become more apparent from the detailed description set forth below when considered in conjunction with the drawings, in all of which the same reference characters identify correspondingly. in all its extension, and in which:

FIG. 1 represents a block diagram of a communication system for an effective uplink transmission of a multiplexed service request and an acknowledgment of data when planned simultaneously.

FIG. 2 represents a flow chart of a methodology for transmitting a multiplexed ACK / NACK channel and a service request (SR) channel on an uplink control channel.

FIG. 3 represents a flow chart of a methodology for receiving a multiplexed ACK / NACK channel and a service request (SR) channel on an uplink control channel.

FIG. 4 represents a block diagram of a multiple access wireless communication system, according to one aspect.

FIG. 5 represents a block diagram of a communication system according to one aspect.

FIG. 6 represents a block diagram representing an exemplary uplink ACK / NACK channel structure according to one aspect.

FIG. 7 represents a flow chart illustrating an improved multiplexing procedure for uplink control channels according to one aspect.

FIG. 8 represents a flow chart illustrating a methodology for receiving the improved multiplexing technique of FIG. 7 according to one aspect.

FIG. 9 represents a flow chart illustrating a methodology for processing enhanced uplink control channels according to one aspect.

FIG. 9 represents a flow chart illustrating an improved multiplexing methodology for uplink control channels according to one aspect.

FIG. 10 represents a flow chart illustrating an improved multiplexing methodology for uplink control channels according to one aspect.

FIG. 11 represents a flow chart illustrating an improved multiplexing methodology for uplink control channels according to one aspect.

FIG. 12 represents a block diagram of the user equipment (UE) for transmitting a multiplexed service request and an acknowledgment of data in the uplink control channel.

FIG. 13 represents a block diagram of a base node for receiving a multiplexed service request and an acknowledgment of data in the uplink control channel.

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DETAILED DESCRIPTION

[0012] A communication system incorporates a multiplexing scheme so that a base node that plans the user's equipment (UE) can determine whether an ACK / NACK and / or a service request (SR) has been received when both transmissions Uplink (UL) are planned simultaneously. Significant reduction of complexity, better link efficiency and greater multiplexing capacity since the base node can interpret the selective use by the UE of the UL channel of aCk / NACK or SR. This interpretation can be extended to when multiple downlink (DL) transmission modes can be used, specifically DL single input and multiple output (SIMO), DL multiple input and multiple output (MIMO) with range 1 transmission , and the MIMO of DL with transmission of rank 2. Based on the knowledge of the planning and the mode of transmission of DL, the base node does not have to blindly decode a series of possibilities due to the correlation of possible responses from the EU. In addition, the multiplexing scheme is applicable to both the frequency division duplex (FDD) and the time division duplex (TDD). Thus, less desirable approaches are avoided, such as higher order modulation (for example, 8 PSK instead of QPSK) which results in loss of link performance for border users, reducing multiplexing capacity (for example , restricting a maximum of ACK channels from 18 to 12), or increasing the complexity of the hardware / software (for example, requiring blind decoding of the ACK to the SR + ACK).

[0013] Various aspects will be described below with reference to the drawings. The following description sets forth, for explanatory purposes, numerous specific details in order to provide a thorough understanding of one or more aspects. However, it may be clear that the various aspects can be implemented without these specific details. In other cases, widely known structures and devices are shown in the form of a block diagram in order to facilitate the description of these aspects.

[0014] As used in this application, the terms "component", "module", "system" and the like are intended to refer to a computer entity, be it hardware, a combination of hardware and software, software or software running. For example, a component can be, but is not limited to, a process that runs on a processor, a processor, an object, an executable, a thread of execution, a program and / or a computer. By way of illustration, an application running on a server, as well as the server itself, can be a component. One or more components may reside within a process and / or thread of execution, and a component may be located on a computer and / or distributed between two or more computers.

[0015] The word "exemplary" is used herein to mean "serving as an example, particular case or illustration". It should not necessarily be considered that any aspect or design described herein as "exemplary" is preferred or advantageous with respect to other aspects or designs.

[0016] In addition, the one or more versions can be implemented as a manufacturing method, apparatus or article using standard programming and / or engineering techniques to produce software, firmware, hardware or any combination thereof to control a computer in order that implements the aspects disclosed. The term "article of manufacture" (or, alternatively, "computer program product") used herein is intended to encompass a computer program accessible from any device, carrier or computer-readable medium. For example, computer-readable media may include, but are not limited to, magnetic storage devices (for example, a hard disk, a flexible disk, magnetic tapes ...), optical discs (for example, a compact disc (CD ), a digital versatile disc (DVD) ...), smart cards and flash memory devices (for example, card, USB memory). In addition, it should be appreciated that a carrier wave can be used to transport computer-readable electronic data such as those used to transmit and receive email or to access a network such as the Internet or a local area network (LAN). Obviously, those skilled in the art will recognize that many modifications can be made to this configuration without departing from the scope of the appended claims.

[0017] Several aspects will be presented in terms of systems that may include a certain number of components, modules and the like. It is to be understood and appreciated that the various systems may include additional components, modules, etc., and / or may not include all components, modules, etc., set forth in relation to the figures. A combination of these approaches can also be used. The various aspects disclosed herein may be carried out in electrical devices, including devices that use touch screen display technologies and / or mouse and keyboard interfaces. Examples of such devices include computers (desktops and laptops), smartphones, personal digital assistants (PDAs) and other electronic, wired and wireless devices.

[0018] With reference initially to FIG. 1, a communication system 100 of a base station, represented as an evolved base node (eNB) 102, communicates via an air link (OTA) 104 with the user equipment (UE) 106. In particular, the eNB 102 uses a downlink (DL) 108 to plan a physical uplink control (PUCCH) channel 110. For example, a concession 112 to make a service request (SR) on the PUCCH 110 is transmitted on the downlink 108. Thus, the UE 106 has a

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opportunity to request resources (for example, frequency and time) to transmit data to the eNB 102. The eNB 102 also transmits 108 data 114 on the downlink according to an early error correction procedure (FEC), such as the use of ARQ (automatic repeat request) or hybrid ARQ (HARQ). The grant of SR 112 transmits conflicting planning for the PUCCH, represented at 116, with an ACK / NACK channel planning that is expected in response to data 114. In response to this planning conflict, a correlation component 120 in the UE 106 transmits, and a correlation component 122 in eNB 102, selectively receives an acknowledgment (ACK), an SR or an SR + ACK as depicted at 124 in PUCCH 110.

[0019] In FIG. 2, in one aspect, a methodology 200 is provided for transmitting a multiplexed ACK / NACK channel and a service request channel (SR) for uplink (UL) transmissions. In block 202, a service request grant is received for the use of an UL control channel. In addition, the data is received according to an automatic repeat request procedure (for example, ARQ, HARQ) as part of the anticipated error control (FEC) (block 204). If a determination is made in block 206 as to whether there is a planning conflict for the PUCCH with respect to the SR and the ACK / NACK for the data received. If not, multiplexing SR and ACK is not necessary and an output occurs (block 207). If there is a conflict, then the correlation is referenced to multiplex the ACK, SR, or ACK + SR in the PUCCH (block 208).

[0020] If the correlation is to be based on the selection of the uplink transmission channel (UL) (block 210), then the appropriate UL control transmission parameters are determined according to the correlation (block 212). In block 214, the SR channel or the ACK channel can be selectively used to transmit the SR, ACK or SR + ACK. In an exemplary implementation, the transmission of ACK in the ACK channel indicates, according to this correlation, that there is no SR. The transmission of the SR in the SR channel indicates that there is no ACK. However, the transmission of one, selected, between the SRs and the ACKs on the other channel (for example, the transmission of ACK on the SR channel) indicates both SR and ACK

[0021] If in block 210 the correlation indicates that the selection of the UL channel is not the means to transmit additional information by correlation, then a determination is made in block 216 as to which mode of downlink transmission (DL ) is being used as the basis for reference to the appropriate correlation.

[0022] As represented in 218 for single input and multiple output (SIMO) of DL, multiplexing, both SR and ACK, is achieved by quadrature by phase shift (QPSK) in the ACK channel (block 220).

[0023] As represented in 222 for DL multiple input and multiple output (MIMO) for range 1 transmission, multiplexing of both Sr and ACK is achieved by QPSk in the ACK channel (block 224 ).

[0024] As depicted in 226 for the transmission of DL MIMO rank 2, a feedback restriction is implemented for acknowledgment with a single ACK reception of both DL streams (block 228). Multiplexing, both of the SRs and of the ACKs, can be achieved by QPSK in the ACK channel (block 230). Alternatively, a planning restriction can be implemented to use either between DL SIMO and DL MIMO rank 1, or to specify the use of one of them (block 232).

[0025] Thus, it should be appreciated that the methodology 200 provides, in summary in block 240, the reception of data according to an advance control procedure for automatic repetition request errors for the transmission of data with an acknowledgment associated receipt, planned for a resource other than the resource assigned for the service request. In addition, in block 242 methodology 200 also provides selective multiplexing of a service request, an ACK / NACK (acknowledgment of receipt / not acknowledged) or a service request and an ACK / NACK in the uplink control channel , omitting data that can be reconstructed by correlation.

[0026] It should be appreciated, with the benefit of the present disclosure, that ACKs and SRs will be assigned to the different control channel resources of UL. If only one such channel is transmitted, it is transmitted to its assigned resources. If both ACKs and SRs need to be transmitted at the same time, due to the restriction of a single carrier, ACKs and SRs cannot be transmitted simultaneously from their assigned resources. In one aspect, this situation is addressed by transmitting ACK information about the resource assigned to the SR, when the UE wishes to send both ACK and SR, and transmitting ACK information about the resource assigned to the ACK when the UE does not wish to send an SR. Thus, depending on the location of the ACK information, the recipient knows whether the SR has been transmitted implicitly or not.

[0027] In FIG. 3, in one aspect, a methodology 300 is provided to receive the multiplexed ACK / NACK channel and the service request channel (SR) for uplink transmissions (UL). In block 302, a service request grant is transmitted for the use of an UL control channel. In addition, the data is transmitted according to an automatic repeat request procedure (for example, ARQ, HARQ) as part of the anticipated error control (FEC) (block 304). If a determination is made in block 306 as to whether there is a planning conflict for the PUCCH regarding the SRs and the ACK / NACKs for the transmitted data. If not, then the multiplexing of the SRs and ACKs is not required and an output occurs

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(block 307). If there is a conflict, then the correlation is referenced to multiplex the ACK, SR or ACK + SR in the PUCCH (block 308).

[0028] If the correlation is to be based on the uplink transmission channel (UL) selection (block 310), then the appropriate UL control transmission parameters are determined according to the correlation (block 312). In block 314, the SR channel or the ACK channel can be selectively used to transmit the SR, ACK or SR + ACK. In an exemplary implementation, receiving an ACK on the ACK channel indicates, according to this correlation, that there is no SR. Receiving an SR on the SR channel indicates that there is no ACK. However, receiving an item selected between the SR and the ACK on the other channel (for example, receiving an ACK on the SR channel) indicates both an SR and an ACK

[0029] If in block 310 the correlation indicates that the UL channel selection is not the means to convey additional information by correlation, then a determination is made in block 316 as to what mode of downlink transmission (DL) is being used as the basis for reference to the appropriate correlation.

[0030] As represented in 318 for the single input and multiple output (SIMO) of DL, demultiplexing of both SR and ACK is achieved by phase shift quadrature demodulation (QPSK) in the ACK channel (block 320).

[0031] As represented in 322 for DL multiple input and multiple output (MIMO) for range 1 transmission, demultiplexing of both SRs and ACKs is achieved by QPSK demodulation in the channel ACK (block 324).

[0032] As represented in 326 for the transmission of MIMO rank 2, a feedback restriction has been imposed to acknowledge receipt, with an ACK receipt, of both DL flows (block 328). The demultiplexing of both SRs and ACKs can be achieved by demodulating by QPSK in the ACK channel (block 330). Alternatively, a planning restriction can be imposed to use either between DL SIMO or DL MIMO rank 1, or to specify the use of one of them (block 332).

[0033] Thus, methodology 300 provides, in summary, as depicted in 340, the transmission of a resource allocation for a service request in an uplink control channel, and the transmission of data according to an advance control procedure for automatic repetition request errors, for the transmission of data with an associated acknowledgment, planned for a resource other than the resource assigned for the service request. In addition, as represented in 342, the methodology provides to receive a multiplexed transmission in the uplink control channel that can selectively comprise a service request, an ACK / NACK (acknowledgment of receipt / not acknowledged) or a service request and an ACK / NACK so that demultiplexing can be achieved, for the transmission of the uplink control channel, by correlation.

[0034] In general, a multi-access wireless communication system can simultaneously support communication for multiple wireless terminals. Each terminal communicates with one or more base stations through direct and reverse link transmissions. The direct link (or downlink) refers to the communication link from the base stations to the terminals, and the reverse link (or uplink) refers to the communication link from the terminals to the base stations. This communication link can be established through a single-input and single-output system, a multi-input and single-output system or a multi-input and multi-output system (MIMO).

[0035] A MIMO system uses multiple (Nt) transmit antennas and multiple (Nr) receive antennas for data transmission. A MIMO channel formed by the Nt transmit antennas and the Nr receive antennas can be broken down into Ns independent channels, which are also called space channels, where Ns a min {Nt, Nr}. Each of the Ns independent channels corresponds to one dimension. The MIMO system can provide improved performance (for example, higher flow and / or greater reliability) if the additional dimensions created by the multiple transmitting and receiving antennas are used.

[0036] A MIMO system supports time division duplexing (TDD) and frequency division duplexing (FDD) systems. In a TDD system, the direct and reverse link transmissions are in the same frequency region, so that the reciprocity principle allows the estimation of the direct link channel from the reverse link channel. This allows the access point to extract the gain of conformation of transmission beams in the direct link when multiple antennas are available at the access point.

[0037] Referring to FIG. 4, a multi-access wireless communication system is illustrated according to one aspect. An access point 450 (AP) includes groups of multiple antennas, one that includes 454 and 456, another that includes 458 and 460, and an additional one that includes 462 and 464. In FIG. 4, only two antennas are shown for each group of antennas; however, a larger or smaller number of antennas can be used for each group of antennas. The access terminal (AT) 466 communicates with the antennas 462 and 464, where the antennas

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462 and 464 transmit information to access terminal 466 via direct link 470 and receive information from access terminal 466 via reverse link 468. Access terminal 472 communicates with antennas 456 and 458, where antennas 456 and 458 they transmit information to access terminal 472 via direct link 476 and receive information from access terminal 472 via reverse link 474. In an FDD system, communication links 468, 470, 474 and 476 can use different frequencies for communication. For example, direct link 470 may use a frequency different from that used by reverse link 468. Each group of antennas and / or the area in which they are designed to communicate is often referred to as a sector of access point 450. In the aspect, each group of antennas is designed to communicate with access terminals 466, 472 in a sector of the areas covered by access point 450.

[0038] In the communication via direct links 470 and 476, the transmission antennas of the access point 450 use beam shaping in order to improve the ratio between signal and noise of the direct links for the different access terminals 466 and 474. In addition, an access point that uses beam shaping for transmission to randomly dispersed access terminals in its coverage area generates less interference for access terminals in neighboring cells than an access point that transmits through from a single antenna to all its access terminals.

[0039] An access point 450 may be a fixed station used to communicate with the terminals and may also be called an access point, node B or with some other terminology. An access terminal 466, 472 may also be referred to as user equipment (UE), wireless communication device, terminal, access terminal or with some other terminology.

[0040] FIG. 5 is a block diagram of an aspect of a transmitter system 510 (also known as the access point) and a receiver system 550 (also known as an access terminal) in a MIMO 500 system. In the transmitter system 510, the Traffic data for various data streams is provided from a data source 512 to a transmission data processor (TX) 514.

[0041] In some aspects, each data stream is transmitted through a respective transmission antenna. The TX 514 data processor formats, encodes and interleaves the traffic data for each data stream based on a particular coding scheme selected for that data stream to provide encoded data.

[0042] The encoded data for each data stream can be multiplexed with pilot data using OFDM techniques. Pilot data is usually a known data pattern that is processed in a known manner and that can be used in the receiving system to estimate the channel response. The pilot and encoded data, multiplexed for each data stream, are then modulated (i.e. correlated with symbols) based on a particular modulation scheme (e.g., BPSK, QPSK, M-PSK or M-QAM) selected for that data flow to provide modulation symbols. The transfer rate, encoding and modulation of data for each data stream can be determined by instructions performed by a 530 processor.

[0043] The modulation symbols for all data streams are then provided to a TX 520 MIMO processor, which can further process the modulation symbols (for example, of OFDM). The TX 520 MIMO processor then provides Nt modulation symbol streams to Nt transmitters (TMTR) 522a to 522t. In certain implementations, the TX 520 MIMO processor applies beamforming weights to the data stream symbols and to the antenna from which the symbol is being transmitted.

[0044] Each transmitter 522 receives and processes a respective symbol flow to provide one or more analog signals and additionally conditions the analog signals (eg, amplifies, filters and raises its frequency) to provide a modulated signal suitable for transmission by The MIMO channel. Nt signals modulated from the 522a to 522t transmitters are then transmitted from the Nt antennas 524a to 524t, respectively.

[0045] In the receiver system 550, the transmitted modulated signals are received by Nr antennas 552a to 552r, and the signal received from each antenna 552 is provided to a respective receiver (RCVR) 554a to 554r. Each receiver 554 conditions a respective received signal (for example, filters, amplifies and reduces its frequency), digitizes the conditioned signal to provide samples and further processes the samples to provide a corresponding flow of "received" symbols.

[0046] Next, an RX 560 data processor receives and processes the Nr symbol streams received from the Nr 554 receivers based on a specific receiver processing technique in order to provide Nt streams of "detected" symbols. Next, the RX 560 data processor demodulates, deinterleaves and decodes each detected symbol stream to retrieve traffic data for the data stream. The processing by the RX 560 data processor is complementary to that performed by the TX 520 MIMO processor and the TX 514 data processor in the 510 transmitter system.

[0047] A 570 processor periodically determines which precoding matrix to use (what is exposed

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later). Processor 570 formulates a reverse link message comprising a matrix index part and a range value part.

[0048] The reverse link message may comprise various types of information regarding the communication link and / or the data flow received. Next, the reverse link message is processed by a TX 538 data processor, which also receives traffic data for various data streams from a data source 536, is modulated by a modulator 580, conditioned by transmitters 554a to 554r, and transmitted back to the 510 transmitter system.

[0049] In the transmitter system 510, the signals modulated from the receiver system 550 are received by the antennas 524, conditioned by the receivers 522, demodulated by a demodulator 540 and processed by an RX 542 data processor to extract the message from reverse link transmitted by the receiver system 550. Next, the processor 530 determines which precoding matrix to use to determine the beam conformation weights and then processes the extracted message.

[0050] In one aspect, logical channels are classified into control channels and traffic channels. The logical control channels comprise the broadcast control channel (BCCH), which is the DL channel for disseminating the system control information. The paging control channel (PCCH), which is the DL channel that transmits paging information. The multicast control channel (MCCH), which is a point-to-multipoint DL channel, used for the transmission of planning and control information of the multimedia broadcasting and multicast service (MBMS), for one or more MTCHs. In general, after establishing an RRC connection, this channel is only used by UEs receiving the MBMS (note: old MCCH + MSCH). The dedicated control channel (DCCH) is a bi-directional point-to-point channel that transmits dedicated control information and is used by UEs that have an RRC connection. In one aspect, the logical traffic channels comprise a dedicated traffic channel (DTCH), which is a bi-directional point-to-point channel, dedicated to a UE, for the transfer of user information. In addition, a multicast traffic channel (MTCH) for the point-to-multipoint DL channel, to transmit traffic data.

[0051] In one aspect, the transport channels are classified in DL and UL. The DL transport channels comprise a broadcast channel (BCH), a shared downlink data channel (DL-SDCH) and a paging channel (PCH), the PCH being to support the energy saving of the UE ( the network indicates to the UE a DRX cycle), transmitted over the entire cell and correlated with PHY resources that can be used for other control / traffic channels. The UL transport channels comprise a random access channel (RACH), a request channel (REQCH), a shared uplink data channel (UL-SDCH) and a plurality of PHY channels. PHY channels comprise a set of DL channels and UL channels.

[0052] DL PHY channels comprise: common pilot channel (CPICH), synchronization channel (SCH), channel

Common Control (CCCH), DL Control Shared Channel (SDCCH), Multicast Control Channel (MCCH), UL Assigned Shared Channel (SUACH), Confirmation Channel (ACKCH), DL Shared Data Physical Channel (DL-PSDCH), UL power control channel (UPCCH), paging indicator channel (PICH) and load indicator channel (LICH). UL PHY channels include: random access physical channel (PRACH), channel

channel quality indicator (CQICH), acknowledgment channel (ACKCH), subset indicator channel of

antennas (ASICH), shared request channel (SREQCH), UL shared physical data channel (UL-PSDCH) and broadband pilot channel (BPICH).

[0053] In one aspect, a channel structure is provided that preserves the low PAR properties (at any given time, the channel is contiguous or uniformly separated in frequency) of a single carrier wave.

[0054] For the purposes of this document, the following abbreviations apply:

AIS Automatic Identification System

AM Acknowledgment of Receipt

AMD Acknowledgment Modality Data

ARQ Automatic Repeat Request

BCCH Broadcast Control Channel

BCH Broadcast Channel

C- Control-

CCCH Common Control Channel

CCH Control Channel

CCTrCH Coded Composite Transport Channel

CDI Channel Address Information

CP Cyclic Prefix

CRC Cyclic Redundancy Verification

CTCH Common Traffic Channel

DCCH Dedicated Control Channel

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DCH Dedicated Channel

DL Downlink

DL-SCH Downlink Shared Channel

DSCH Shared Channel Downlink

DTCH Dedicated Traffic Channel

FACH Direct Link Access Channel

FDD Duplexed by Frequency Division

i.i.d. independently and identically distributed

L1 Layer 1 (physical layer)

L2 Layer 2 (data link layer)

L3 Layer 3 (network layer)

LI Length Indicator

LSB Bit less significant

MAC Media access control

MBMS Multimedia broadcast / multicast service

MBSFN Multicast and broadcast single frequency network

MCCH Point-to-multipoint Control Channel of the MBMS

MCE MBMS Coordinating Entity

MCH Multicast Channel

MIMO Multiple input and multiple output

MRW Move reception window

MSB Bit Most Significant

MSCH Point-to-multipoint Planning Channel of MBMS MTCH Point-to-multipoint Traffic Channel of MBMS PCCH Paging Control Channel

PCH Paging Channel

PDCCH Physical downlink control channel PDSCH Physical downlink shared channel PDU PHY Protocol Data Unit Physical layer

PhyCH Physical channels

PUSCH Physical uplink shared channel

PUCCH Physical channel uplink control

QoS Quality of service

RACH Random Access Channel

RLC Radio Link Control

RRC Radio Resource Control

SAP Service Access Point

SDU Service Data Unit

SHCCH Channel Shared Channel Control

SN Sequence Number

SUFI Superfield

TCH Traffic Channel

TDD Duplexed by Time Division

TFI Transport Format Indicator

TM Transparent Modality

TMD Data in Transparent Modality

TTI Transmission Time Interval

U- User-

UE User Equipment

UL Uplink

UM Modality without Receipt

UMB Ultra Mobile Broadband

UMD Data in Modality without Acknowledgment of Receipt

UMTS Universal Mobile Telecommunications System

UTRA UMTS Terrestrial Radio Access

UTRAN UMTS Terrestrial Radio Access Network

WWAN Wireless Wide Area Network

[0055] Acknowledgment / Negative Acknowledgment (ACK / NACK) transmissions transmitted by a receiver (for example, a UE) communicate the success or failure of the reception of the data transmitted by a transmitter (for example , an e-NB). In one aspect, the resource allocated for ACK / NACK transmission by a receiver is known a priori, for example, by explicit correlation with a corresponding downlink control physical channel assignment (PDCCH) for shared physical channel transmission. downlink (PDSCH).

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[0056] Service Request (SR) transmissions transmitted by a UE communicate a request to the e-NB of resources for the transmission. In one aspect, the resources (for example, frequency and time allocation) allocated for the transmission of SRs by a UE are signaled by layer 3 signaling (L3) and, therefore, will be known a priori.

[0057] The physical uplink control channel (PUCCH) carries uplink control information, including ACK / NACK transmissions and SR transmissions, and can support multiple formats. In one aspect, for the uplink ACK / NACK channel (UL) as well as for SR channel transmissions, the cyclically shifted constant amplitude zero auto-correlation (CAZAC) sequences, as well as the DFT dispersion and Walsh, they are used to multiplex different users. As an example, for the transmission of the UL ACK / NACK channel, both the reference signal (RS) and the data can use cyclically shifted CAZAC sequences of length 12. In one aspect, up to 18 users can be multiplexed into function of the cyclic shifts of the CAZAC sequences, as well as the dispersion in the time domain of DFT for Rs and Walsh for data. FIG. 6 illustrates an exemplary ACK / NACK 600 channel structure with 3 pilots.

[0058] In situations where both ACK / NACK transmissions and SR transmissions have to be transmitted simultaneously and, therefore, multiplexed by the UE, one or more of the following problems may occur: greater processing complexity, reduction of link efficiency and / or greater requirement for multiplexing capabilities. For example, if different displacements and time domain dispersion codes were specified for the transmission of ACK / NACK, unlike the transmission that involves transmission of both SRs and ACK / NACKs, some resources would have to be set aside for SR transmission. The drawbacks associated with this approach include some loss in the multiplexing capacity of ACK channels and the restriction of maximum ACK channels to 12 instead of 18. In addition, blind decoding would be required to differentiate ACK transmissions from the SR + ACK. On the other hand, if a higher order modulation, such as 8-PSK, was implemented to multiplex the transmission of ACK / NACKs and SRs, there would be a significant loss of link level compared to QPSK. This link loss can be a particularly limiting factor for users at the border of coverage.

[0059] Referring to FIG. 7, a flow chart is shown illustrating an improved multiplexing procedure for uplink control channels according to one aspect. In block 702, the UE determines the uplink transmission mode of the UE. As stated above, the transmission resources for the SRs can be known a priori by signaling the upper layer, for example, the L3 signaling. In addition, the resource allocated for the transmission of ACK / NACK by a receiver is known a priori, for example, by explicit correlation with a corresponding downlink control physical channel assignment (PDCCH) for the transmission of shared physical link channel. descending (PDSCH). Therefore, from the above information, the UE can determine a particular uplink transmission mode, that is, if it is planned to send only SR transmissions (first uplink transmission mode), or if it is planned to send only ACK / NACK transmissions (second uplink transmission mode), or if it is planned to send both SR transmissions and ACK / NACK transmissions (third uplink transmission mode).

[0060] In a first uplink transmission mode, only SR transmissions are sent (ie, without ACK / NACK transmission), and in block 704 the UE transmits SR information in the resources allocated for the transmission of the SR. In a second uplink transmission mode, only ACK / NACK transmissions (ie, without SR transmission) are sent and, in block 706, the UE transmits ACK / NACK information on the resources allocated for transmission from ACK / NACK.

[0061] In a third uplink transmission mode, the user equipment is planned to send both SR and ACK / NACK transmissions. In the case where the UE has an SR to transmit, in block 708, the UE transmits ACK / NACK information on the resources allocated for SR transmission. The transmission of ACK / NACK information in SR resources communicates both ACK / NACK information and the indication of a service request.

[0062] In the case where the UE is planned to send the transmission of both the SRs and the ACK / NACKs, but the UE does not have a SR request to transmit, the UE transmits the ACK / NACK transmission over the ACK / NACK resource (this corresponds to the actions of block 706) as indicated by optional path 709. As such, the selection (or non-selection) of the SR transmission resources to communicate the ACK / NACK additionally signals the SR bit. Consequently, the multiplexing capacity of the ACK / NACK channel is not reduced.

[0063] Referring to FIG. 8, a flow chart illustrating a procedure for receiving the improved multiplexing technique of FIG. 7, according to one aspect. In block 802, the e-NB determines the transmission uplink mode of the UE. As stated above, the transmission resources for the SRs can be known a priori by signaling the upper layer, for example, the L3 signaling. In addition, the resource allocated for ACK / NACK transmission by a receiver is

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Knows a priori, for example, by explicit mapping with a corresponding downlink control physical channel assignment (PDCCH) for downlink shared physical channel transmission (PDSCH). Therefore, from the above information, the e-NB can determine the uplink transmission mode of the UE, that is, if the UE is planned to send only SR transmissions (first uplink transmission mode), or if the UE is planned to send only ACK / NACK transmissions (second uplink transmission mode), or if the UE is planned to send both SR transmissions and ACK / NACK transmissions (third uplink transmission mode ).

[0064] In a first uplink transmission mode, only SR transmissions are sent (ie, without ACK / NACK transmission), and in block 804 the e-NB receives and processes (demodulates, decodes, etc.). ) SR information on the resources allocated for SR transmission (ie, SR transmission from the UE in block 404 of FIG. 7). In a second uplink transmission mode, only ACK / NACk transmissions (i.e., without SR transmission) are sent and, in block 806, the e-NB receives and processes ACK / NACK information in the resources assigned for the transmission of ACK / NACK (ie, the transmission of ACK / NACK from the UE in block 406 of FIG. 4).

[0065] In a third uplink transmission mode, the UE is planned to send both SR and ACK / NACK transmissions and, in block 808, the e-NB performs blind demodulation of the ACK / NACK and decoding in the resources allocated for both ACK / NACK and SR transmissions. Following block 808, in block 810, the e-NB determines whether the ACK / NACK was correctly demodulated and decoded in the ACK / NACK resources and, if so, ACK / NACK information is obtained and, in addition , the e-NB determines that an SR was not requested by the EU. As described above, in FIG. 7, the communication of the ACK / NACK information about the ACK / NACK resources (block 706) is associated with the communication of the ACK / NACK information UE only (ie, without an SR).

[0066] Also after block 808, in block 814, the e-NB determines if the ACK / NACK was correctly demodulated and decoded in the SR resources and, if so, the information of ACK / NACK is obtained and In addition, the e-NB determines that an SR was requested by the EU. As described above, in FIG. 7, the communication of the ACK / NACK information on the SR resources (block 708) is associated with the communication of the ACK / NACK information UE and in addition to the signaling of an SR.

[0067] Referring to FIG. 9, a flowchart illustrating an improved multiplexing procedure for uplink control channels is shown, according to another aspect. In block 902, the UE determines the downlink transmission mode (DL). In the example of FIG. 9, the cases are shown for single output and multiple output (SIMO) of DL, MIMO of DL with rank 1 and MIMO of DL with rank 2. In both SIMO of DL and MIMO of DL with rank 1, a single one is transmitted layer or downlink train, and one bit of ACK / NACK and one bit of SR can be communicated. In MIMO of Dl with rank 2, two or more downlink layers or streams are transmitted, and typically two bits of ACK / NACK are sent, each bit corresponding to a particular layer or stream; Additionally, an SR bit can be sent.

[0068] In a first DL transmission mode, associated with DL SIMO, in block 904, the UE transmits an ACK / NACK bit and an SR bit using QPSK modulation on the ACK / NACK channel. In a second DL transmission mode, associated with DL MIMO rank 1, in block 906, the UE transmits an ACK / NACK bit and an SR bit using QPSK modulation on the ACK / NACK channel.

[0069] In a third mode of DL transmission, associated with DL MIMO rank 2, in block 908, the ACK / NACK information is limited to one bit, and one bit can be used to communicate the SR using modulation QPSK on the ACK / NACK channel in block 910. By way of illustration, the ACK / NACK bit can be set to true or "ACK" if both layers or streams of DL MIMO range 2 transmission are received correctly; otherwise, a false value, or "NACK" is sent.

[0070] The e-NB is configured to process each of the communications transmitted by the UE, associated with blocks 904, 906 and 910.

[0071] Referring to FIG. 10, a flow chart is shown illustrating an improved multiplexing procedure for uplink control channels according to another aspect. In block 1002, the uplink transmission mode of the UE is determined. As stated above, the transmission resources for the SRs can be known a priori by signaling the upper layer, for example, the L3 signaling. In addition, the resource allocated for the transmission of ACK / NACK by a receiver is known a priori, for example, by explicit correlation with a corresponding downlink control physical channel assignment (PDCCH) for the transmission of shared physical link channel. descending (PDSCH). Therefore, from the above information, it can be determined whether the UE is planned to send only SR transmissions, or if it is planned to send only ACK / NACK transmissions, or if it is planned to send both SR transmissions and transmissions of SR ACK / NACK

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[0072] In block 1004, a determination is made as to whether a downlink transmission corresponds to an SR subframe, in which case the UE would be planned to send both SR transmissions and ACK / NACK transmissions. If so, the flowchart continues to block 1006, where a scheduler limits the DL transmission mode for the UE. For example, the DL transmission mode may be limited to a single-layer or single-stream transmission mode, such as SIMO or MIMO with rank 1. As such, only one bit is required for the ACK, and a single bit can be used. bit to transmit an SR. Accordingly, the UE transmits an ACK / NACK bit and an sR bit using QPSK modulation over the ACK / NACK channel. If in block 1004, the UE is not planned to send both SR transmissions and ACK / NACK transmissions, the DL transmission mode is not limited, and MIMO range 2 transmission can be enabled. In such a case, an SR bit is not required, and two bits can be used using QPSK modulation on the ACK / NACK channel, one bit for each layer or flow associated with the MIMO Range 2 transmission. Link level performance is improved in this way.

[0073] Referring to FIG. 11, a flow chart is shown illustrating an improved multiplexing procedure for uplink control channels according to another aspect. In block 1102, the UE determines the downlink transmission mode (DL). In the example of FIG. 11, the cases are shown for single input and multiple output (SIMO) of DL, MIMO of DL with rank 1 and MIMO of DL with rank 2. Both in SIMO of DL and in MIMO of DL with rank 1, a communication can be communicated ACK / NACK bit and one SR bit. In DL MIMO with rank 2, two ACK / NACK bits are typically sent, each bit corresponding to a particular layer; Additionally, an SR bit can be sent.

[0074] In a first DL transmission mode, associated with DL SIMO, in block 1104, the UE transmits an ACK / NACK bit and an SR bit using QPSK modulation on the ACK / NACK channel. In a second DL transmission mode, associated with DL MIMO rank 1, in block 1106, the UE transmits an ACK / NACK bit and an SR bit using QPSK modulation on the ACK / NACK channel.

[0075] In a third mode of DL transmission, associated with DL MIMO rank 2, in block 1108, the UE transmits two ACK / NACK bits and one SR bit using 8PSK modulation on the ACK / NACK channel . Since MIMO users with rank 2 are usually indoor users, the difference at the link level between 8PSK and QPSK will generally not be a limiting factor for such users.

[0076] By virtue of the foregoing, it should be appreciated that various aspects have been disclosed, the following comprising an illustrative but not exhaustive enumeration, which provides examples for a better understanding of the present invention:

[0077] In one aspect, a method is provided for multiplexing uplink control channels, which comprises determining an uplink transmission mode of a UE and transmitting ACK / NACK information in a non-ACK resource. / NACK, based on the determined uplink transmission mode of the UE. In another aspect, the ACK / NACK information can be transmitted in a service request resource when the UE is scheduled to transmit a service request and an ACK / NACK at the same time. In a further aspect, the presence of ACK / NACK information in the service request resource further indicates a service request.

[0078] Alternatively, the procedure may further comprise the transmission of a service request in a service request resource when the UE is planned to transmit the service request, but not planned to transmit an ACK / NACK.

[0079] As another alternative, the method may further comprise the transmission of ACK / NACK in an ACK / NACK resource when the UE is not planned to transmit a service request, but is planned to transmit the ACK / NACK.

[0080] As an additional alternative, the method may further comprise the transmission of ACK / NACK in an ACK / NACK resource when the UE is planned to transmit a service request and an ACK / NACK at the same time, in which the The presence of ACK / NACK information in the ACK / NACK resource also indicates the absence of a service request.

[0081] In a further aspect, a procedure has been provided for receiving uplink control channels by determining an uplink transmission mode of a UE, blindly processing an ACK / NACK resource in conjunction with a non-resource. of ACK / NACK to obtain an ACK / NACK transmission from the UE, and determine a second channel signaling if the ACK / NACK transmission was successfully processed from the non-ACK / NACK resource. In a further aspect, the non-ACK / NACK resource is a service request resource, and in which the second channel signaling comprises signaling a service request. Alternatively, the procedure may further comprise determining a lack of signaling of the second channel if the aCk / NACK transmission was successfully processed from the ACK / NACK resource. In particular, the non-ACK / NACK resource may be a service request resource, where the determination of a lack of signaling of the second channel comprises the determination of

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that a service request was not sent.

[0082] In yet another aspect, a method for multiplexing uplink control channels has been provided by limiting the feedback information of ACK / NACK to a single bit for a plurality of downlink transmission streams, modulation QPSK of the single ACK / NACK information bit and a second service request information bit on an ACK / NACK channel.

[0083] In a further aspect, a procedure has been provided for planning a transmission mode of a UE by determining an uplink transmission mode of a UE, limiting a downlink transmission mode of the UE at a single flow, based on the determined uplink transmission mode of the UE. In another aspect, the UE may be limited to DL SIMO or DL MIMO with Rank 1 when the UE is scheduled to transmit a service request and an ACK / NACK at the same time.

[0084] In a further aspect, a method for multiplexing uplink control channels has been provided by determining a downlink transmission mode of a UE, the single-bit QPSK modulation of ACK / NACK information and a second bit of service request information on an ACK / NACK channel for a single-stream downlink transmission mode of the UE, and 8PSK modulation of a plurality of ACK / NACK information bits and the second bit of service request information on the ACK / NACK channel for a multi-stream downlink transmission mode of the UE.

[0085] In a further aspect, an apparatus that can be operated in a wireless communication system has been provided. Means have been provided to determine an uplink transmission mode of a UE. Means have been provided for transmitting ACK / NACK information on a non-ACK / NACK resource based on the determined uplink transmission mode of the UE.

[0086] In a further aspect, an apparatus that can be operated in a wireless communication system has been provided. Means have been provided to determine an uplink transmission mode of a UE. Means for blindly processing an ACK / NACK resource together with a non-ACK / NACK resource have been provided to obtain the transmission of ACK / NACK from the UE. Means have been provided to determine a second channel signaling if the ACK / NACK transmission was successfully processed from the non-ACK / NACK resource.

[0087] In a further aspect, an apparatus that can be operated in a wireless communication system has been provided. Means have been provided to limit ACK / NACK feedback information to a single bit for a plurality of downlink transmission streams. Means have been provided for the QPSK modulation of the single ACK / NACK information bit and a second service request information bit on an ACK / NACK channel.

[0088] In another aspect, an apparatus that can be operated in a wireless communication system has been provided. Means have been provided to determine an uplink transmission mode of a UE. Means have been provided to limit a downlink transmission mode of a UE to a single stream depending on the determined uplink transmission mode of the UE.

[0089] In a further aspect, an apparatus that can be operated in a wireless communication system has been provided. Means have been provided to determine a downlink transmission mode of a UE. Means have been provided for the QPSK modulation of a single bit of ACK / NACK information and a second bit of service request information on an ACK / NACK channel for a single stream downlink transmission mode of the UE. Means have been provided for the 8PSK modulation of a plurality of ACK / NACK information bits and the second service request information bit on the ACK / NACK channel for a multi-stream downlink transmission mode of the UE.

[0090] In another additional aspect, an electronic device has been provided that is configured to perform any of the procedures mentioned above.

[0091] In one aspect, a machine-readable medium has been provided comprising instructions that, when executed by a machine, cause the machine to perform operations that include determining an uplink transmission mode of a UE, and the transmission of ACK / NACK information in a non-ACK / NACK resource based on the determined uplink transmission mode of the UE.

[0092] In another aspect, a machine-readable medium has been provided comprising instructions that, when executed by a machine, cause the machine to perform operations that include the determination of an uplink transmission mode of a UE, the blind processing of an ACK resource

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/ NACK together with a non-ACK / NACK resource, to obtain the transmission of ACK / NACK from the UE, and the determination of a second channel signaling if the ACK / NACK transmission was successfully processed from the non-resource from ACK / NACK.

[0093] In a further aspect, a machine-readable medium has been provided comprising instructions that, when executed by a machine, cause the machine to perform operations that include the limitation of ACK / NACK feedback information to a single bit for a plurality of downlink transmission streams, and the QPSK modulation of the single ACK / NACK information bit and a second service request information bit in an ACK / NACK channel.

[0094] In a further aspect, a machine-readable medium has been provided comprising instructions that, when executed by a machine, cause the machine to perform operations that include the determination of an uplink transmission mode of a UE, and the limitation of a downlink transmission mode of the UE to a single stream, based on the determined uplink transmission mode of the UE.

[0095] In yet another aspect, a machine-readable medium has been provided comprising instructions that, when executed by a machine, cause the machine to perform operations that include the determination of a downlink transmission mode of a UE, QPSK modulation of a single bit of ACK / NACK information and a second bit of service request information on an ACK / NACK channel, for a single stream downlink transmission mode of the UE, and 8PSK modulation of a plurality of ACK / NACK information bits and the second service request information bit on the ACK / NACK channel for a multi-stream downlink transmission mode of the UE.

[0096] In yet another aspect, an apparatus has been provided that can be operated in a wireless communication system. A processor is configured to determine an uplink transmission mode of a UE, and transmit ACK / NACK information on a non-ACK / NACK resource, based on the determined uplink transmission mode of the UE. A memory is coupled to the processor to store data.

[0097] In a further aspect, an apparatus that can be operated in a wireless communication system has been provided. A processor is configured to determine an uplink transmission mode of a UE; blindly process an ACK / NACK resource together with a non-ACK / NACK resource, to obtain the transmission of ACK / NACK from the UE; and determine a second channel signaling if the ACK / NACK transmission was successfully processed from the non-ACK / NACK resource. A memory is coupled to the processor to store data.

[0098] In another additional aspect, an apparatus that can be operated in a wireless communication system has been provided. A processor is configured for the limitation of ACK / NACK feedback information to a single bit for a plurality of downlink transmission streams, and the QPSK modulation of the single ACK / NACK information bit and a second bit of service request information on an ACK / NACK channel. A memory is coupled to the processor to store data.

[0099] In one aspect, an apparatus that can be operated in a wireless communication system has been provided. A processor is configured to determine an uplink transmission mode of a UE, and to limit a UE downlink transmission mode to a single flow based on the determined uplink transmission mode of the UE. A memory is coupled to the processor to store data.

[0100] In another aspect, an apparatus that can be operated in a wireless communication system has been provided. A processor is configured to determine a downlink transmission mode of a UE; QPSK modulation of a single bit of ACK / NACK information and a second bit of service request information on an ACK / NACK channel for a single stream downlink transmission mode of the UE; and 8PSK modulation of a plurality of ACK / NACK information bits and the second service request information bit in the ACK / NACK channel for a multi-stream downlink transmission mode of the UE. A memory is coupled to the processor to store data.

[0101] In yet another additional aspect, a method has been provided for multiplexing the uplink control channels by determining an uplink transmission mode of a UE, and transmitting uplink control channel information. in a resource not associated with the uplink control channel information, based on the determined uplink transmission mode of the UE.

[0102] In FIG. 12, the base node 1200 has a computer platform 1202 that provides a module, such as code sets to cause a computer to receive multiplexed uplink control channels.

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In particular, the computer platform 1202 includes a computer-readable storage medium (for example, memory) 1204 that stores a plurality of modules (eg, electronic component or logic circuit) 1206-1210 executed by one or more processors 1212, which it also controls (n) a transmitter / receiver component 1214 to communicate with the eNBs (FIG. 13). In particular, module 1206 is provided to determine that the first and second control channels with the first and second resources allocated require, respectively, simultaneous transmission. Module 1208 is provided to receive an element selected between the first and second control channels, with the corresponding element between the first and second resources, to indicate the selected one without indicating the one not selected between the first and second control channels. The module (module) 1210 is provided to receive an element selected between the first and second control channels, with the non-corresponding element of the first and second resources, to indicate both first and second control channels.

[0103] In FIG. 13, the user equipment (UE) 1300 has a computer platform 1302 that provides a module, such as code sets to cause a computer to transmit multiplexed uplink control channels. In particular, the computing platform 1302 includes a computer-readable storage medium (for example, memory) 1304 that stores a plurality of modules (for example, electronic component or logic circuit) 1306-1310 executed by one or more processors 1314, which it also controls (n) a transmitter / receiver component 1316 to communicate with the eNB (FIG. 12). In particular, module 1306 is provided to determine that the first and second control channels, with the first and second resources allocated, require, respectively, simultaneous transmission. The module 1308 is provided to transmit a selected element between the first and second control channels, with the corresponding element of the first and second resources, to indicate the selected element without indicating the one not selected between the first and second control channels. Module 1310 is provided to transmit a selected element between the first and second control channels, with the non-corresponding element of the first and second resources, to indicate both first and second control channels.

[0104] Those skilled in the art will understand that information and signals can be represented using any of several different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols and chips that may have been mentioned throughout the above description can be represented by voltages, currents, electromagnetic waves, fields or particles magnetic, optical fields or particles or any combination thereof.

[0105] Those skilled in the art will further appreciate that the various logical blocks, modules, circuits and illustrative algorithm steps described in relation to the embodiments disclosed herein may be implemented as electronic hardware, computer software or combinations of both. To clearly illustrate this interchangeability of hardware and software, various components, blocks, modules, circuits and illustrative stages have been described above, in general, in terms of their functionality. Whether such functionality is implemented as hardware or software depends on the particular application and the design restrictions imposed on the global system. Those skilled in the art can implement the described functionality in various ways for each particular application without departing from the scope of the appended claims.

[0106] In one or more exemplary embodiments, the described functions may be implemented in hardware, software, firmware or any combination thereof. If implemented in software, functions, such as one or more instructions or codes, can be stored in, or transmitted by, a computer-readable medium. Computer-readable media includes both computer storage media and communication media, including any media that facilitates the transfer of a computer program from one place to another. A storage medium can be any available media that can be accessed by a general purpose or special purpose computer. By way of example, and not limitation, such computer-readable media may comprise RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other means that it can be used to transport or store desired program code media in the form of instructions or data structures and which can be accessed by a general purpose or special purpose computer, or by a general purpose or special purpose processor. In addition, any connection properly receives the name of computer readable media. For example, if the software is transmitted from a web page, server or other remote source, using a coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) or wireless technologies such as infrared, radio and microwave, then the coaxial cable, fiber optic cable, twisted pair, DSL or wireless technologies, such as infrared, radio and microwave, are included in the definition of medium. The discs, as used herein, include a compact disc (CD), a laser disc, an optical disc, a digital versatile disc (DVD), a flexible disc and a Blu-ray disc, where some discs usually they reproduce the data magnetically, while other discs reproduce the data optically with lasers. Combinations of the above should also be included within the scope of computer readable media.

[0107] The various logic blocks, modules and illustrative circuits described in conjunction with the embodiments disclosed herein may be implemented or performed with a general purpose processor, with a digital signal processor (DSP), with a circuit Application-specific integrated (ASIC),

with a formation of field programmable gates (FPGA) or with another programmable logic device, transistor logic or discrete gates, discrete hardware components, or any combination thereof designed to perform the functions described in this document. A general purpose processor may be a microprocessor but, alternatively, the processor may be any conventional processor, controller, microcontroller or state machine. A processor can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors together with a DSP core or any other such configuration.

10 [0108] The steps of a procedure or algorithm described in relation to the embodiments disclosed in

This document can be made directly in hardware, in a software module executed by a processor or in a combination of the two. A software module can reside in a RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard drive, removable disk, CD-ROM or any other form of storage media known in the art. A half of

Exemplary storage is coupled to the processor so that the processor can read information from, and write information on, the storage medium. Alternatively, the storage medium may be integrated in the processor. The processor and storage medium may reside in an ASIC. The ASIC can reside in a user terminal. Alternatively, the processor and the storage medium may reside as discrete components in a user terminal.

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[0109] The above description of the disclosed embodiments is provided to allow any person skilled in the art to make or use the present disclosure. Various modifications of these embodiments will be immediately apparent to those skilled in the art within the scope of protection defined by the appended claims.

Claims (13)

10 fifteen twenty 25 30 2. 35 3. Four. 40 5. 45 6. fifty 55 60 65 A method for the transmission of multiplexed uplink control channels, comprising: determine that the first and second control channels, with the first and second resources allocated, require, respectively, simultaneous transmission; transmitting a selected element between the first and second control channels, with the corresponding element of the first and second resources, to indicate the selected element without indicating the one not selected between the first and second control channels; Y transmitting a selected element between the first and second control channels, with the non-corresponding element of the first and second resources, to indicate both first and second control channels; in which the first and second control channels comprise the receipt of the data acknowledgment and the service request; the method further comprises multiplexing the service request and the ACK / NACK based on a downlink transmission mode, DL; determine that the downlink transmission mode, DL, is multi-input and multi-output transmission, MIMO, with rank two; Y receive a planning restriction to select single input and multiple output, SIMO, or MIMO of rank one, when the downlink transmission corresponds to a service request subframe; Y multiplex ACK and service request by using an ACK / NACK channel, by phase shift quadrature modulation, QPSK. The method of claim 1, further comprising determining that the downlink transmission mode, DL, is single input and multiple output, SIMO. The method of claim 2, further comprising multiplexing the ACK and the service request using an ACK / NACK channel, by quadrature phase shift modulation, QPSK. The method of claim 1, further comprising multiplexing the ACK and the service request by implementing a feedback restriction to transmit an ACK to acknowledge receipt of two downlink flows successfully. The method of claim 4, further comprising modulating an ACK and a phase shift quadrature service request, QPSK. An apparatus (106) adapted to transmit multiplexed uplink control channels, comprising: a computer platform adapted to determine that the first and second control channels, with the first and second resources allocated, require, respectively, simultaneous transmission; a transmitter adapted to transmit a selected element between the first and second control channels, with the corresponding element of the first and second resources, to indicate the selected element without indicating the one not selected between the first and second control channels, in which the transmitter is further adapted to transmit a selected element between the first and second control channels, with the non-corresponding element of the first and second resources, to indicate both first and second control channels; in which the first and second control channels comprise the receipt of the data acknowledgment and the service request; the apparatus further comprising a multiplexer adapted to multiplex the service request and the ACK / NACK based on a downlink transmission mode, DL; the computing platform is further adapted to determine that the downlink transmission mode, DL, is multi-input and multi-output, MIMO, with range two transmission; 7. 10 8. 9. fifteen twenty 25 30 35 40 10. Four. Five eleven. 50 12. 55 60 65 and said apparatus further comprises a receiver adapted to receive a planning restriction to select the single input and multiple output, SIMO, or MIMO of rank one, when the downlink transmission corresponds to the service request subframe, and in which The transmitter is further adapted to multiplex ACK and service request by using an ACK / NACK channel, by phase shift quadrature modulation, QPSK. The apparatus of claim 6, wherein the multiplexer is further adapted to multiplex ACK and service request by implementing a feedback restriction to transmit an ACK to acknowledge successful receipt of two downlink streams. The apparatus of claim 7, wherein the receiver is further adapted to demodulate an ACK and a phase shift quadrature service request, QPSK. A method for receiving multiplexed uplink control channels, comprising: determine that the first and second control channels, with the first and second resources allocated, require, respectively, simultaneous transmission; receiving an element selected between the first and second control channels, with the corresponding element of the first and second resources, to indicate the selected element without indicating the one not selected between the first and second control channels; Y receiving a selected element between the first and second control channels, with the non-corresponding element of the first and second resources, to indicate both first and second control channels; in which the first and second control channels comprise the receipt of the data acknowledgment and the service request; the procedure further comprises demultiplexing the service request and the ACK / NACK by determining a downlink transmission mode, DL; determine that the downlink transmission mode, DL, is multiple input and multiple output, MIMO, with range two transmission; Y transmit a planning restriction to select the single input and multiple output, SIMO, or MIMO of rank one, when the downlink transmission corresponds to the service request subframe; Y demultiplex ACK and service request by demodulating an ACK / NACK channel, phase shift quadrature modulation, QPSK. The method of claim 9, further comprising demultiplexing ACK and service request by imposing a feedback restriction to transmit an ACK to acknowledge successful receipt of two downlink streams. The method of claim 10, further comprising demodulating a phase shift quadrature ACK, QPSK, and a service request. An apparatus (102) adapted to receive multiplexed uplink control channels, comprising: a computer platform adapted to determine that the first and second control channels, with the first and second resources allocated, require, respectively, simultaneous transmission; a receiver adapted to receive an element selected between the first and second control channels, with the corresponding element of the first and second resources, to indicate the selected element without indicating the unselected of the first and second control channels, in which the receiver is further adapted to receive an element selected between the first and second control channels, with the non-corresponding element of the first and second resources, to indicate both first and second control channels in which the first and second control channels comprise the receipt of the data acknowledgment and the service request; the apparatus further comprising a demultiplexer adapted to demultiplex the service request and the ACK / NACK determining a downlink transmission mode, DL; the computing platform is further adapted to determine that the downlink transmission mode, DL, is multi-input and multi-output, MIMO, with range two transmission; Y 5 further comprising said apparatus a transmitter adapted to transmit a restriction of planning to select single output and multiple output, SIMO, or MIMO rank one, when the downlink transmission corresponds to the service request subframe, and in which the receiver is further adapted to demultiplex ACK and service request, demodulating an ACK / nAcK channel of quadrature phase shift modulation, QPSK. 10 13. The apparatus of claim 12, wherein the computing platform is further adapted to demultiplex ACK and service request by imposing a feedback restriction to transmit an ACK to acknowledge receipt of two link flows successfully. falling. 14. The apparatus of claim 13, wherein the receiver is further adapted to demodulate a Quadrature phase shift ACK, QPSK, and a service request 15. A computer program comprising instructions that, when executed by a computer system, causes the computer system to carry out the procedure of any of the 20 claims 1 to 5 or 9 to 11.